CVE-2020-9278

An issue was discovered on D-Link DSL-2640B B2 EU4.01B devices. The device can be reset to its default configuration by accessing an unauthenticated URL...

Stack overflow

An issue was discovered on D-Link DSL-2640B B2 EU4.01B devices. The function docgi, which processes cgi requests supplied to the device's web servers, is vulnerable to a remotely exploitable stack-based buffer overflow. Unauthenticated exploitation is possible by combining this vulnerability with...

CVE-2020-9279: Use of Hard-coded Credentials

An issue was discovered on D-Link DSL-2640B B2 EU4.01B devices. A hard-coded account allows management-interface login with high privileges. The logged-in user can perform critical tasks and take full control of the device...

CVE-2020-9277: Improper Authentication

An issue was discovered on D-Link DSL-2640B B2 EU4.01B devices. Authentication can be bypassed when accessing cgi modules. This allows one to perform administrative tasks e.g., modify the admin password with no authentication...